slackcoder/qemu - QEMU is a generic and open source machine & userspace emulator and virtualizer

Age	Commit message (Collapse)	Author
2019-10-04	spapr-tpm-proxy: Drop misleading check	Greg Kurz
	Coverity is reporting in CID 1405304 that tpm_execute() may pass a NULL tpm_proxy->host_path pointer to open(). This is based on the fact that h_tpm_comm() does a NULL check on tpm_proxy->host_path and then passes tpm_proxy to tpm_execute(). The check in h_tpm_comm() is abusive actually since a spapr-proxy-tpm requires a non NULL host_path property, as checked during realize. Fixes: 0fb6bd073230 Signed-off-by: Greg Kurz <groug@kaod.org> Message-Id: <156805260916.1779401.11054185183758185247.stgit@bahia.lan> Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-08-21	spapr: initial implementation for H_TPM_COMM/spapr-tpm-proxy	Michael Roth
	This implements the H_TPM_COMM hypercall, which is used by an Ultravisor to pass TPM commands directly to the host's TPM device, or a TPM Resource Manager associated with the device. This also introduces a new virtual device, spapr-tpm-proxy, which is used to configure the host TPM path to be used to service requests sent by H_TPM_COMM hcalls, for example: -device spapr-tpm-proxy,id=tpmp0,host-path=/dev/tpmrm0 By default, no spapr-tpm-proxy will be created, and hcalls will return H_FUNCTION. The full specification for this hypercall can be found in docs/specs/ppc-spapr-uv-hcalls.txt Since SVM-related hcalls like H_TPM_COMM use a reserved range of 0xEF00-0xEF80, we introduce a separate hcall table here to handle them. Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com Message-Id: <20190717205842.17827-3-mdroth@linux.vnet.ibm.com> [dwg: Corrected #include for upstream change] Signed-off-by: David Gibson <david@gibson.dropbear.id.au>